Income Taxes Unrecognized Tax Benefits Roll Forward (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Income Tax Disclosure [Abstract]
Balance at beginning of period	$ 26,419	$ 29,903	$ 31,818
Additions	0	0	951
Expiration of statute of limitations	(7,298)	0	0
Settlements	0	(3,484)	(2,866)
Balance at ending of period	$ 19,121	$ 26,419	$ 29,903